Abstract:
The present invention relates to a recombinant adenoviral vector for generating immunity against enterovirus infection. In one embodiment, the recombinant adenoviral vector of the invention comprises an expression cassette encoding a PI protein and a 3 CD protease of an enterovirus. In another embodiment, the recombinant adenoviral vector of the invention comprises an expression cassette encoding a 3C protease or a 3CD protease of an enterovirus. The present invention also relates to a vaccine composition comprising the recombinant adenoviral vector as described. A method of inducing an immune response in a subject against enterovirus infection using the recombinant adenoviral vector and the vaccine composition is provided. Further provided is a method for producing virus like particles of an enterovirus by expressing the adenoviral vector as described herein in mammalian cells.
Abstract:
The present invention relates to viral particles as immunogens against enterovirus infection and a method of producing the same. Specifically, the present invention features that human embryo kidney 293 (HEK 293) cells are used to produce viral particles of Enterovirus A, particularly Coxsackievirus A6 (CVA6) particles or Coxsackievirus A10 (CVA10) particles or both and optionally additional viral particles of other Enterovirus A e.g. Coxsackievirus A16 (CVA16) and/or Enterovirus A71 (EV71). The yield of the viral particles in HEK 293 cells are unexpectedly high and effective to induce an immune response against enterovirus infection, especially CVA6 and CVA10. The present invention also relates to an immunogenic composition against enterovirus infection for human use comprising the viral particles as described herein and a method of preventing enterovirus infection or a disease as caused, particularly Hand-Foot-Mouth diseases (HFMD), by administering the immunogenic composition to a subject in need thereof.